(;GM[1]FF[4]SZ[19]
GN[Closed corridor]
PC[http://senseis.xmp.net/?Corridor]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Corridor

Closed corridor]
PL[B]

AB[gi][hi][ii][ji][gj][gk][hk][ik][jk]
AW[ki][kj][kk]


;
)
